While here remove excessive log and uninit() call in negate_init().
All expressions default to "val".
All expressions default to "val".
+@subsection Commands
+
+This filter supports same @ref{commands} as options.
+
@subsection Examples
@itemize
@subsection Examples
@itemize
With value 1, it negates the alpha component, if present. Default value is 0.
@end table
With value 1, it negates the alpha component, if present. Default value is 0.
@end table
+@subsection Commands
+
+This filter supports same @ref{commands} as options.
+
@anchor{nlmeans}
@section nlmeans
@anchor{nlmeans}
@section nlmeans
#define A 3
#define OFFSET(x) offsetof(LutContext, x)
#define A 3
#define OFFSET(x) offsetof(LutContext, x)
-#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption options[] = {
{ "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
static const AVOption options[] = {
{ "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "clipval" }, .flags = FLAGS },
return ff_filter_frame(outlink, out);
}
return ff_filter_frame(outlink, out);
}
+static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
+ char *res, int res_len, int flags)
+{
+ int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
+
+ if (ret < 0)
+ return ret;
+
+ return config_props(ctx->inputs[0]);
+}
+
static const AVFilterPad inputs[] = {
{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
static const AVFilterPad inputs[] = {
{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.query_formats = query_formats, \
.inputs = inputs, \
.outputs = outputs, \
.query_formats = query_formats, \
.inputs = inputs, \
.outputs = outputs, \
- .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, \
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | \
+ AVFILTER_FLAG_SLICE_THREADS, \
+ .process_command = process_command, \
static av_cold int negate_init(AVFilterContext *ctx)
{
LutContext *s = ctx->priv;
static av_cold int negate_init(AVFilterContext *ctx)
{
LutContext *s = ctx->priv;
- int i;
-
- av_log(ctx, AV_LOG_DEBUG, "negate_alpha:%d\n", s->negate_alpha);
- for (i = 0; i < 4; i++) {
+ for (int i = 0; i < 4; i++) {
s->comp_expr_str[i] = av_strdup((i == 3 && !s->negate_alpha) ?
"val" : "negval");
s->comp_expr_str[i] = av_strdup((i == 3 && !s->negate_alpha) ?
"val" : "negval");
- if (!s->comp_expr_str[i]) {
- uninit(ctx);
+ if (!s->comp_expr_str[i])